NR507 Week 8 Actual Exam Questions and Answers
With Rationales / Graded A+ / 2026 Update / 100% Correct
Advanced Pathophysiology Comprehensive Week 8 Final Exam Practice Review - 50 Questions | 2026/2027 Aligned
AACN Essentials Domain 1 & 3 | NCSBN Clinical Judgment Measurement Model (NCJMM) | Evidence-Based Advanced
Nursing Practice Standards
Section Questions
Section 1: Cellular & Genetic Pathophysiology: Adaptation, Injury, Inflammation & Immune Response Q1-Q10
Section 2: Hematologic, Cardiovascular & Pulmonary Disorders Q11-Q20
Section 3: Renal, Endocrine & Gastrointestinal Pathophysiology Q21-Q30
Section 4: Neurologic, Musculoskeletal & Integumentary Disorders Q31-Q40
Section 5: Oncology, Reproductive & Comprehensive Synthesis Q41-Q50
Section 1: Cellular & Genetic Pathophysiology: Adaptation, Injury, Inflammation & Immune
Response (Q1-Q10)
Q1: A 65-year-old patient with a 40-year smoking history presents with chronic productive cough and
dyspnea. A bronchial biopsy reveals columnar ciliated epithelium replaced by stratified squamous
epithelium. This cellular adaptation is BEST described as which of the following?
A. Hypertrophy [CORRECT]
B. Hyperplasia
C. Metaplasia
D. Dysplasia
Correct Answer: C
Rationale: Metaplasia is the reversible replacement of one mature cell type with another, often in response to chronic irritation
or stress. In this case, chronic tobacco smoke exposure causes the respiratory epithelium to transform from ciliated columnar
to stratified squamous epithelium, an adaptive response that may impair mucociliary clearance. Hypertrophy (A) refers to an
increase in cell size, not type. Hyperplasia (B) is an increase in cell number. Dysplasia (D) is abnormal, potentially
pre-malignant cellular changes, which represents a more serious derangement than metaplasia.
Q2: A patient sustained a crushing injury to the lower extremity. Laboratory results show elevated serum
creatine kinase (CK) and myoglobin. The predominant mechanism of cellular injury in this patient is:
A. Ischemic injury with ATP depletion and calcium influx
B. Direct toxic injury from released intracellular enzymes
C. Free radical-mediated lipid peroxidation of cell membranes
D. Immunologic injury from complement activation
Correct Answer: A
Rationale: Crushing injuries cause ischemic injury through prolonged compression of blood vessels, leading to ATP depletion,
failure of sodium-potassium pumps, cellular swelling, and calcium influx. Calcium activates phospholipases, proteases, and
endonucleases that damage cellular components. While free radicals (C) contribute as secondary mediators, the primary
mechanism is ischemia-reperfusion injury with ATP depletion. The elevated CK and myoglobin (A and B as distractors) are
markers of muscle cell damage, not the mechanism of injury itself. Complement activation (D) is not the primary mechanism in
crush injury.
Q3: A 28-year-old woman presents with recurrent episodes of facial swelling, pruritus, and hypotension
after eating shellfish. Laboratory testing reveals elevated serum tryptase during episodes. Which
hypersensitivity reaction mechanism is MOST directly involved?
A. Type I: IgE-mediated mast cell and basophil degranulation
, B. Type II: Antibody-dependent cytotoxic reaction
C. Type III: Immune complex-mediated vasculitis
D. Type IV: T-cell-mediated delayed hypersensitivity
Correct Answer: A
Rationale: This patient exhibits classic anaphylaxis, a systemic Type I hypersensitivity reaction. Prior sensitization to shellfish
allergens generates IgE antibodies that bind to Fc receptors on mast cells and basophils. Re-exposure triggers cross-linking of
IgE, degranulation with release of histamine, tryptase, leukotrienes, and prostaglandins, causing urticaria, angioedema,
bronchospasm, and hypotension. Elevated serum tryptase is a hallmark marker of mast cell activation. Type II (B) involves
IgG/IgM against cell surfaces. Type III (C) involves circulating immune complexes. Type IV (D) is T-cell mediated and delayed
(24-72 hours), not immediate.
Q4: A patient with rheumatoid arthritis is prescribed methotrexate. The nurse explains that methotrexate
works in this condition primarily by which mechanism?
A. Blocking TNF-alpha cytokine production by macrophages
B. Inhibiting dihydrofolate reductase, reducing purine synthesis and decreasing lymphocyte proliferation
C. Binding to CD20 on B lymphocytes and causing complement-mediated lysis
D. Inhibiting phosphodiesterase-4, reducing TNF-alpha and IL-1 production
Correct Answer: B
Rationale: Methotrexate is a folate antagonist that inhibits dihydrofolate reductase (DHFR), a key enzyme in the folate
pathway required for purine and pyrimidine synthesis. By reducing nucleotide availability, methotrexate selectively inhibits
rapidly dividing cells, including activated lymphocytes involved in the autoimmune response of rheumatoid arthritis. Blocking
TNF-alpha (A) describes the mechanism of biologic agents such as infliximab or adalimumab. CD20 binding (C) describes
rituximab. Phosphodiesterase-4 inhibition (D) describes apremilast. Understanding mechanism of action is critical for
NCLEX-style prioritization of immunosuppressive therapies.
Q5: A 72-year-old patient with type 2 diabetes mellitus develops a non-healing wound on the lower
extremity. Impaired wound healing in this patient is PRIMARILY attributable to which pathophysiologic
mechanism?
A. Hyperglycemia-induced glycation of proteins impairs leukocyte function, collagen synthesis, and angiogenesis,
compounded by microvascular disease and neuropathy.
B. Insulin deficiency directly prevents fibroblast migration and keratinocyte proliferation in the wound bed.
C. Advanced glycation end-products (AGEs) stimulate excessive fibroblast activity, causing fibrotic non-healing
wounds.
D. Diabetic patients have an inherent genetic deficiency in clotting factor synthesis that impairs hemostasis.
Correct Answer: A
Rationale: Chronic hyperglycemia leads to non-enzymatic glycation of proteins forming advanced glycation end-products
(AGEs) that cross-link collagen, impairing its structural integrity. Hyperglycemia also impairs neutrophil chemotaxis,
phagocytosis, and bacterial killing, reducing the inflammatory phase of wound healing. Microvascular disease reduces tissue
perfusion and oxygen delivery, while sensory neuropathy increases injury risk and reduces protective sensation. Type 2
diabetes involves insulin resistance, not absolute insulin deficiency (B). AGEs impair rather than stimulate fibroblast function
(C). There is no inherent clotting factor deficiency in diabetes (D).
Q6: A patient with a severe bacterial infection develops disseminated intravascular coagulation (DIC).
Which of the following laboratory findings is MOST consistent with the acute phase of DIC?
A. Elevated platelet count, prolonged PT, low fibrinogen, elevated D-dimer
B. Decreased platelet count, prolonged PT, decreased fibrinogen, elevated D-dimer
C. Decreased platelet count, normal PT, elevated fibrinogen, low D-dimer
D. Elevated platelet count, normal PT, elevated fibrinogen, normal D-dimer
Correct Answer: B
Rationale: Acute DIC is characterized by widespread activation of coagulation leading to microvascular thrombosis,
consumption of clotting factors and platelets, and secondary fibrinolysis. The classic laboratory triad includes
thrombocytopenia (platelet consumption), prolonged PT/PTT (factor consumption), decreased fibrinogen (consumption), and
elevated D-dimer or fibrin degradation products (evidence of fibrinolysis). Elevated platelet count (A, D) is inconsistent with
consumption coagulopathy. Normal PT and elevated fibrinogen (C) do not reflect the consumptive process characteristic of
, acute DIC.
Q7: A 45-year-old man of Ashkenazi Jewish descent is diagnosed with Gaucher disease. This condition
results from a deficiency in which enzyme, leading to accumulation of what substrate?
A. Hexosaminidase A; GM2 ganglioside accumulation
B. Glucocerebrosidase; glucocerebroside accumulation in macrophages
C. Sphingomyelinase; sphingomyelin accumulation in neural tissue
D. Alpha-galactosidase A; globotriaosylceramide accumulation in blood vessels
Correct Answer: B
Rationale: Gaucher disease, the most common lysosomal storage disorder, is caused by autosomal recessive deficiency of
the enzyme glucocerebrosidase (acid beta-glucosidase). This leads to accumulation of glucocerebroside within lysosomes of
macrophages (Gaucher cells), causing hepatosplenomegaly, cytopenias, and bone disease. It is most prevalent in Ashkenazi
Jewish populations. Hexosaminidase A deficiency (A) causes Tay-Sachs disease. Sphingomyelinase deficiency (C) causes
Niemann-Pick disease types A and B. Alpha-galactosidase A deficiency (D) causes Fabry disease.
Q8: A patient with systemic lupus erythematosus (SLE) presents with fatigue, joint pain, and a malar rash.
Antinuclear antibody (ANA) testing is positive. The pathophysiology of SLE involves loss of self-tolerance
through which of the following mechanisms?
A. Excessive suppressor T-cell activity that paralyzes the immune system
B. Impaired clearance of apoptotic cells, leading to exposure of nuclear autoantigens and formation of immune
complexes that deposit in tissues
C. Genetic deficiency of all immunoglobulin classes preventing normal antigen recognition
D. Overproduction of complement proteins causing excessive tissue inflammation
Correct Answer: B
Rationale: SLE pathogenesis involves impaired clearance of apoptotic cells, which exposes nuclear antigens (DNA, histones,
Smith antigen) to the immune system. Defective phagocytosis by macrophages, complement deficiencies (especially C1q,
C4), and increased apoptotic cell load lead to formation of autoantibodies (ANA, anti-dsDNA, anti-Sm). These autoantibodies
form immune complexes that deposit in tissues (skin, kidneys, joints, serosa), activating complement and causing inflammation
via Type III hypersensitivity. Excessive suppressor T-cell activity (A) would cause immunodeficiency, not autoimmunity.
Immunoglobulin deficiency (C) describes immunodeficiency disorders. Complement in SLE is typically consumed (decreased),
not overproduced (D).
Q9: A 58-year-old patient with chronic alcohol use presents with jaundice, ascites, and asterixis. Liver
biopsy reveals Mallory-Denk bodies, bridging fibrosis, and regenerative nodules. The primary mechanism
driving hepatic fibrosis in this patient involves activation of which cell type?
A. Hepatocytes converting to fibroblasts under oxidative stress
B. Hepatic stellate cells transforming into myofibroblasts in response to TGF-beta and reactive oxygen species
C. Kupffer cells directly secreting excessive type I collagen in the space of Disse
D. Endothelial cells of the hepatic sinusoids undergoing metaplastic transformation
Correct Answer: B
Rationale: Hepatic stellate cells (HSCs, also called Ito cells) are the primary effector cells in liver fibrosis. In response to
chronic injury from alcohol (via acetaldehyde toxicity and ROS generation), viral hepatitis, or NASH, HSCs activate and
transform into myofibroblast-like cells that proliferate and secrete large amounts of extracellular matrix (type I and III collagen,
fibronectin). This process is driven by TGF-beta (the most potent profibrogenic cytokine), PDGF, and reactive oxygen species.
Hepatocytes (A) do not convert to fibroblasts. Kupffer cells (C) are macrophages that release cytokines that activate HSCs but
do not directly produce collagen. Endothelial cells (D) do not undergo metaplastic transformation in cirrhosis.
Q10: A 30-year-old woman presents with recurrent infections, low lymphocyte count, and diminished
antibody responses to vaccines. Flow cytometry reveals absence of B lymphocytes. Genetic testing
confirms a mutation in the BTK gene. This patient's condition is BEST classified as:
A. Severe combined immunodeficiency (SCID) with absent T and B cells
B. X-linked agammaglobulinemia (Bruton disease) with absent B cells and deficient immunoglobulins
C. Common variable immunodeficiency (CVID) with normal B cell numbers but impaired function
With Rationales / Graded A+ / 2026 Update / 100% Correct
Advanced Pathophysiology Comprehensive Week 8 Final Exam Practice Review - 50 Questions | 2026/2027 Aligned
AACN Essentials Domain 1 & 3 | NCSBN Clinical Judgment Measurement Model (NCJMM) | Evidence-Based Advanced
Nursing Practice Standards
Section Questions
Section 1: Cellular & Genetic Pathophysiology: Adaptation, Injury, Inflammation & Immune Response Q1-Q10
Section 2: Hematologic, Cardiovascular & Pulmonary Disorders Q11-Q20
Section 3: Renal, Endocrine & Gastrointestinal Pathophysiology Q21-Q30
Section 4: Neurologic, Musculoskeletal & Integumentary Disorders Q31-Q40
Section 5: Oncology, Reproductive & Comprehensive Synthesis Q41-Q50
Section 1: Cellular & Genetic Pathophysiology: Adaptation, Injury, Inflammation & Immune
Response (Q1-Q10)
Q1: A 65-year-old patient with a 40-year smoking history presents with chronic productive cough and
dyspnea. A bronchial biopsy reveals columnar ciliated epithelium replaced by stratified squamous
epithelium. This cellular adaptation is BEST described as which of the following?
A. Hypertrophy [CORRECT]
B. Hyperplasia
C. Metaplasia
D. Dysplasia
Correct Answer: C
Rationale: Metaplasia is the reversible replacement of one mature cell type with another, often in response to chronic irritation
or stress. In this case, chronic tobacco smoke exposure causes the respiratory epithelium to transform from ciliated columnar
to stratified squamous epithelium, an adaptive response that may impair mucociliary clearance. Hypertrophy (A) refers to an
increase in cell size, not type. Hyperplasia (B) is an increase in cell number. Dysplasia (D) is abnormal, potentially
pre-malignant cellular changes, which represents a more serious derangement than metaplasia.
Q2: A patient sustained a crushing injury to the lower extremity. Laboratory results show elevated serum
creatine kinase (CK) and myoglobin. The predominant mechanism of cellular injury in this patient is:
A. Ischemic injury with ATP depletion and calcium influx
B. Direct toxic injury from released intracellular enzymes
C. Free radical-mediated lipid peroxidation of cell membranes
D. Immunologic injury from complement activation
Correct Answer: A
Rationale: Crushing injuries cause ischemic injury through prolonged compression of blood vessels, leading to ATP depletion,
failure of sodium-potassium pumps, cellular swelling, and calcium influx. Calcium activates phospholipases, proteases, and
endonucleases that damage cellular components. While free radicals (C) contribute as secondary mediators, the primary
mechanism is ischemia-reperfusion injury with ATP depletion. The elevated CK and myoglobin (A and B as distractors) are
markers of muscle cell damage, not the mechanism of injury itself. Complement activation (D) is not the primary mechanism in
crush injury.
Q3: A 28-year-old woman presents with recurrent episodes of facial swelling, pruritus, and hypotension
after eating shellfish. Laboratory testing reveals elevated serum tryptase during episodes. Which
hypersensitivity reaction mechanism is MOST directly involved?
A. Type I: IgE-mediated mast cell and basophil degranulation
, B. Type II: Antibody-dependent cytotoxic reaction
C. Type III: Immune complex-mediated vasculitis
D. Type IV: T-cell-mediated delayed hypersensitivity
Correct Answer: A
Rationale: This patient exhibits classic anaphylaxis, a systemic Type I hypersensitivity reaction. Prior sensitization to shellfish
allergens generates IgE antibodies that bind to Fc receptors on mast cells and basophils. Re-exposure triggers cross-linking of
IgE, degranulation with release of histamine, tryptase, leukotrienes, and prostaglandins, causing urticaria, angioedema,
bronchospasm, and hypotension. Elevated serum tryptase is a hallmark marker of mast cell activation. Type II (B) involves
IgG/IgM against cell surfaces. Type III (C) involves circulating immune complexes. Type IV (D) is T-cell mediated and delayed
(24-72 hours), not immediate.
Q4: A patient with rheumatoid arthritis is prescribed methotrexate. The nurse explains that methotrexate
works in this condition primarily by which mechanism?
A. Blocking TNF-alpha cytokine production by macrophages
B. Inhibiting dihydrofolate reductase, reducing purine synthesis and decreasing lymphocyte proliferation
C. Binding to CD20 on B lymphocytes and causing complement-mediated lysis
D. Inhibiting phosphodiesterase-4, reducing TNF-alpha and IL-1 production
Correct Answer: B
Rationale: Methotrexate is a folate antagonist that inhibits dihydrofolate reductase (DHFR), a key enzyme in the folate
pathway required for purine and pyrimidine synthesis. By reducing nucleotide availability, methotrexate selectively inhibits
rapidly dividing cells, including activated lymphocytes involved in the autoimmune response of rheumatoid arthritis. Blocking
TNF-alpha (A) describes the mechanism of biologic agents such as infliximab or adalimumab. CD20 binding (C) describes
rituximab. Phosphodiesterase-4 inhibition (D) describes apremilast. Understanding mechanism of action is critical for
NCLEX-style prioritization of immunosuppressive therapies.
Q5: A 72-year-old patient with type 2 diabetes mellitus develops a non-healing wound on the lower
extremity. Impaired wound healing in this patient is PRIMARILY attributable to which pathophysiologic
mechanism?
A. Hyperglycemia-induced glycation of proteins impairs leukocyte function, collagen synthesis, and angiogenesis,
compounded by microvascular disease and neuropathy.
B. Insulin deficiency directly prevents fibroblast migration and keratinocyte proliferation in the wound bed.
C. Advanced glycation end-products (AGEs) stimulate excessive fibroblast activity, causing fibrotic non-healing
wounds.
D. Diabetic patients have an inherent genetic deficiency in clotting factor synthesis that impairs hemostasis.
Correct Answer: A
Rationale: Chronic hyperglycemia leads to non-enzymatic glycation of proteins forming advanced glycation end-products
(AGEs) that cross-link collagen, impairing its structural integrity. Hyperglycemia also impairs neutrophil chemotaxis,
phagocytosis, and bacterial killing, reducing the inflammatory phase of wound healing. Microvascular disease reduces tissue
perfusion and oxygen delivery, while sensory neuropathy increases injury risk and reduces protective sensation. Type 2
diabetes involves insulin resistance, not absolute insulin deficiency (B). AGEs impair rather than stimulate fibroblast function
(C). There is no inherent clotting factor deficiency in diabetes (D).
Q6: A patient with a severe bacterial infection develops disseminated intravascular coagulation (DIC).
Which of the following laboratory findings is MOST consistent with the acute phase of DIC?
A. Elevated platelet count, prolonged PT, low fibrinogen, elevated D-dimer
B. Decreased platelet count, prolonged PT, decreased fibrinogen, elevated D-dimer
C. Decreased platelet count, normal PT, elevated fibrinogen, low D-dimer
D. Elevated platelet count, normal PT, elevated fibrinogen, normal D-dimer
Correct Answer: B
Rationale: Acute DIC is characterized by widespread activation of coagulation leading to microvascular thrombosis,
consumption of clotting factors and platelets, and secondary fibrinolysis. The classic laboratory triad includes
thrombocytopenia (platelet consumption), prolonged PT/PTT (factor consumption), decreased fibrinogen (consumption), and
elevated D-dimer or fibrin degradation products (evidence of fibrinolysis). Elevated platelet count (A, D) is inconsistent with
consumption coagulopathy. Normal PT and elevated fibrinogen (C) do not reflect the consumptive process characteristic of
, acute DIC.
Q7: A 45-year-old man of Ashkenazi Jewish descent is diagnosed with Gaucher disease. This condition
results from a deficiency in which enzyme, leading to accumulation of what substrate?
A. Hexosaminidase A; GM2 ganglioside accumulation
B. Glucocerebrosidase; glucocerebroside accumulation in macrophages
C. Sphingomyelinase; sphingomyelin accumulation in neural tissue
D. Alpha-galactosidase A; globotriaosylceramide accumulation in blood vessels
Correct Answer: B
Rationale: Gaucher disease, the most common lysosomal storage disorder, is caused by autosomal recessive deficiency of
the enzyme glucocerebrosidase (acid beta-glucosidase). This leads to accumulation of glucocerebroside within lysosomes of
macrophages (Gaucher cells), causing hepatosplenomegaly, cytopenias, and bone disease. It is most prevalent in Ashkenazi
Jewish populations. Hexosaminidase A deficiency (A) causes Tay-Sachs disease. Sphingomyelinase deficiency (C) causes
Niemann-Pick disease types A and B. Alpha-galactosidase A deficiency (D) causes Fabry disease.
Q8: A patient with systemic lupus erythematosus (SLE) presents with fatigue, joint pain, and a malar rash.
Antinuclear antibody (ANA) testing is positive. The pathophysiology of SLE involves loss of self-tolerance
through which of the following mechanisms?
A. Excessive suppressor T-cell activity that paralyzes the immune system
B. Impaired clearance of apoptotic cells, leading to exposure of nuclear autoantigens and formation of immune
complexes that deposit in tissues
C. Genetic deficiency of all immunoglobulin classes preventing normal antigen recognition
D. Overproduction of complement proteins causing excessive tissue inflammation
Correct Answer: B
Rationale: SLE pathogenesis involves impaired clearance of apoptotic cells, which exposes nuclear antigens (DNA, histones,
Smith antigen) to the immune system. Defective phagocytosis by macrophages, complement deficiencies (especially C1q,
C4), and increased apoptotic cell load lead to formation of autoantibodies (ANA, anti-dsDNA, anti-Sm). These autoantibodies
form immune complexes that deposit in tissues (skin, kidneys, joints, serosa), activating complement and causing inflammation
via Type III hypersensitivity. Excessive suppressor T-cell activity (A) would cause immunodeficiency, not autoimmunity.
Immunoglobulin deficiency (C) describes immunodeficiency disorders. Complement in SLE is typically consumed (decreased),
not overproduced (D).
Q9: A 58-year-old patient with chronic alcohol use presents with jaundice, ascites, and asterixis. Liver
biopsy reveals Mallory-Denk bodies, bridging fibrosis, and regenerative nodules. The primary mechanism
driving hepatic fibrosis in this patient involves activation of which cell type?
A. Hepatocytes converting to fibroblasts under oxidative stress
B. Hepatic stellate cells transforming into myofibroblasts in response to TGF-beta and reactive oxygen species
C. Kupffer cells directly secreting excessive type I collagen in the space of Disse
D. Endothelial cells of the hepatic sinusoids undergoing metaplastic transformation
Correct Answer: B
Rationale: Hepatic stellate cells (HSCs, also called Ito cells) are the primary effector cells in liver fibrosis. In response to
chronic injury from alcohol (via acetaldehyde toxicity and ROS generation), viral hepatitis, or NASH, HSCs activate and
transform into myofibroblast-like cells that proliferate and secrete large amounts of extracellular matrix (type I and III collagen,
fibronectin). This process is driven by TGF-beta (the most potent profibrogenic cytokine), PDGF, and reactive oxygen species.
Hepatocytes (A) do not convert to fibroblasts. Kupffer cells (C) are macrophages that release cytokines that activate HSCs but
do not directly produce collagen. Endothelial cells (D) do not undergo metaplastic transformation in cirrhosis.
Q10: A 30-year-old woman presents with recurrent infections, low lymphocyte count, and diminished
antibody responses to vaccines. Flow cytometry reveals absence of B lymphocytes. Genetic testing
confirms a mutation in the BTK gene. This patient's condition is BEST classified as:
A. Severe combined immunodeficiency (SCID) with absent T and B cells
B. X-linked agammaglobulinemia (Bruton disease) with absent B cells and deficient immunoglobulins
C. Common variable immunodeficiency (CVID) with normal B cell numbers but impaired function
